Description
Horde Groupware Webmail Edition through 5.2.22 allows a reflection injection attack through which an attacker can instantiate a driver class. This then leads to arbitrary deserialization of PHP objects.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 12 | php-horde-turba | 4.2.25-6 | — |
| Debian 11 | php-horde-turba | 4.2.25-5+deb11u2 | DLA-3923-1 |
| Debian 10 | php-horde-turba | 4.2.23-1+deb10u1 | DLA-3090-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | php-horde-turba | No fix yet | — |
| Ubuntu 16.04 LTS | php-horde-turba | No fix yet | — |
Advisories 2
- DLA-3090-1 php-horde-turba - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3923-1 php-horde-turba - security update Debian Security (DSA / DLA) · Mar 9, 2026